Coco Vandeweghe upsets Vera Zvonareva in the second round of San Diego

American Coco Vandeweghe stunned third seed Vera Zvonareva in the second round of the Mercury Insurance Open in San Diego, even though the Russian world No.9 dominated the first set and lead by a break early in the second and third sets. Final score: 2-6 7-5 6-4.

The 18-year-old Vandeweghe, ranked 205th in the world, has recorded only her third victory on the Sony Ericsson WTA Tour and it’s already a Top 10 one. Her second main draw win on the Tour came in the first round of the San Diego tournament, against Argentina’s Gisela Dulko.

In the quarterfinals of the $700,000 Mercury Insurance Open Vandeweghe will play another Russian, two-time Grand Slam champion Svetlana Kuznetsova, who toughed it out against Sara Errani 6-1 6-7(5) 7-5 in the second round. (photos by John Bolan)